Disclosed are a method and a system for switchover of looped network wireless apparatuses.

A network node device and a ring network system for eliminating the ring ID error message in the ring network.

A method for eliminating the ring ID error message in the ring network belongs to the ring network technique field.

During the first pre-set time after the ring network become closed loop from open loop, each node eliminates the ring ID error message flowed through it on the ring network.

Further correspondingly disclosed is a ring network of ultrahigh frequency readers.

With the present invention, multiple link faults in the ring network can be detected and located.

At this point, loop initialization begins and each node port (408) in the loop network obtains a unique loop network address.

In another implementation, an error detection device (428) is included in a loop network (400) and monitors the datastream of the loop network (400).

The other nodes of the loop network forward the TF frame in sequence.

A hub port (400) in a loop network is disclosed.

A loop network hub including a hub port (400) with a loop initialization insertion mechanism.

A timed token protocol (Fig. 3) for use in a local area loop communications network.

The Interac® network, for example, operates an open‑loop scheme cleared through the ACSS, while credit card networks (e.g. Visa, MasterCard) operate their own proprietary open‑loop schemes.

The invention described herein provides a system and method for fault isolation and auto-recovery in chained loop or ring networking systems (103).